In my role as secretary of Hants Branch BSAOC I have had an enquiry from a member who has his B31 crank apart after big end failure. He says that there is a hole both ends of the crankpin, one has a grub screw fitted, but for the other end there was no form of plugging (might be why the bearing failed
).
Does anyone here have detailed knowledge of this engine, or perhaps e-mail the contact of someone who has? (bsa'at'manortec,co,uk). Chris Jefferies the club tech consultant for B31 etc does not have an e-amil or phone number listed in the Star
.
Apologies for the off subject post.
Mike